Stick mixer



FIG. 1 is a rear isometric view of a stick mixer according my new invention;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is an enlarged rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is an enlarged bottom plan view thereof. 

The ornamental design for a stick mixer, as shown and described. 